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  <title>test_desired_tag (KarakuriTest)</title>
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  <pre><span class="ruby-comment cmt"># File test/karakuri_test.rb, line 71</span>
  <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">test_desired_tag</span>
    <span class="ruby-identifier">result</span> = <span class="ruby-constant">Karakuri</span><span class="ruby-operator">::</span><span class="ruby-identifier">desired_tag</span>(<span class="ruby-constant">GIVEN_QUERY_01</span>)
    <span class="ruby-identifier">assert</span>(<span class="ruby-identifier">result</span> <span class="ruby-operator">==</span> <span class="ruby-constant">EXPECTED_TAG_01</span>, <span class="ruby-node">&quot;Wrong tag extracted! Expected '#{EXPECTED_TAG_01}', but was '#{result}'&quot;</span>)
    <span class="ruby-identifier">result</span> = <span class="ruby-constant">Karakuri</span><span class="ruby-operator">::</span><span class="ruby-identifier">desired_tag</span>(<span class="ruby-value str">&quot;tag=&quot;</span>)
    <span class="ruby-identifier">assert</span>(<span class="ruby-identifier">result</span> <span class="ruby-operator">==</span> <span class="ruby-value str">''</span>, <span class="ruby-node">&quot;Result expected to be empty, but was #{result}&quot;</span>)
    <span class="ruby-identifier">result</span> = <span class="ruby-constant">Karakuri</span><span class="ruby-operator">::</span><span class="ruby-identifier">desired_tag</span>(<span class="ruby-value str">&quot;tag&quot;</span>)
    <span class="ruby-identifier">assert</span>(<span class="ruby-identifier">result</span> <span class="ruby-operator">==</span> <span class="ruby-value str">''</span>, <span class="ruby-node">&quot;Result expected to be empty, but was #{result}&quot;</span>)
    <span class="ruby-identifier">result</span> = <span class="ruby-constant">Karakuri</span><span class="ruby-operator">::</span><span class="ruby-identifier">desired_tag</span>(<span class="ruby-value str">&quot;&quot;</span>)
    <span class="ruby-identifier">assert</span>(<span class="ruby-identifier">result</span> <span class="ruby-operator">==</span> <span class="ruby-value str">''</span>, <span class="ruby-node">&quot;Result expected to be empty, but was #{result}&quot;</span>)
    <span class="ruby-identifier">result</span> = <span class="ruby-constant">Karakuri</span><span class="ruby-operator">::</span><span class="ruby-identifier">desired_tag</span>(<span class="ruby-keyword kw">nil</span>)
    <span class="ruby-identifier">assert</span>(<span class="ruby-identifier">result</span> <span class="ruby-operator">==</span> <span class="ruby-keyword kw">nil</span>, <span class="ruby-node">&quot;Result expected to be nil, but was #{result}&quot;</span>)
  <span class="ruby-keyword kw">end</span></pre>
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